Corrosion-resistant conductive aluminum alloy and preparation method thereof

Abstract

The invention discloses a corrosion resistant conductive aluminum alloy and a preparation method thereof. The invention aims to design a corrosion resistant conductive aluminum alloy with good corrosion resistance and excellent conductivity and the preparation method thereof. The technical scheme adopted by the invention is as follows: the corrosion resistant conductive aluminum alloy has the following components: magnesium, iron, silicon, manganese, cerium or lanthanum and aluminum in equal amounts. The preparation method comprises the following steps of: melting an aluminum ingot, and then adding lanthanum or cerium or mixed rare-earth consisting of lanthanum or cerium or more in equal amounts, heating up until materials are melted, keeping vacuum in the process, evenly stirring, degassing and decontaminating, and then pouring for later use; and melting iron, silicon and manganese intermediate alloys in vacuum, melting an aluminum ingot, and then adding iron, silicon and manganese according to the needed ratio of the alloy, heating up until the materials are completely melted, and then pouring for later use. The corrosion resistant conductive aluminum alloy has good corrosion resistance, can be used for greatly reducing the corrosive loss of aluminum alloy cables in coastal areas, and improving the service life of the aluminum alloy cables in the abovementioned environment.

Description

Technical field: [0001] The invention relates to alloy materials, in particular to a corrosion-resistant conductive aluminum alloy and a preparation method thereof. Background technique: [0002] At present, most of the transmission cables used in my country's coastal areas are traditional conductive aluminum alloys. Although this type of cable meets the needs of power transmission, the natural environment along the coast makes the service life of traditional aluminum alloy conductors short, requiring frequent replacement of transmission cables. , leading to higher usage costs. The traditional 5XXX aluminum-magnesium alloy gold is the most resistant to marine corrosion. It is often used in ship construction and other aspects, but its conductivity cannot meet the daily power transmission requirements. Therefore, there is an urgent need for an aluminum-magnesium alloy that has excellent electrical conductivity on the basis of high corrosion resistance. Invention cont...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the transmission cables used in my country's coastal areas are traditional conductive aluminum alloys. Although this type of cable meets the needs of power transmission, the natural environment along the coast makes the service life of traditional aluminum alloy conductors short, requiring frequent replacement of transmission cables. , resulting in higher cost of use

The traditional 5XXX aluminum-magnesium alloy gold is the most resistant to marine corrosion. It is often used in ship construction, etc., but its conductivity cannot meet the daily power transmission requirements.

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